Jump to content
  • 0

08 Sierra Denali HVAC Control


beasleyiv

Question

I replaced the HVAC control module for cosmetic reasons. Ever since, the system loses it's mind in regards to directed airflow. Most of the time it ends up seemingly not coming out anywhere, even with the fan blowing. You can hear the air just bouncing around inside the ducts.

 

A reset of the system and calibration (after pulling fuses) fixes it for a short time. I've seen on the net that perhaps when replacing the HVAC control module that it needs to be programmed. Can you confirm? I have no DTCs set (at least that my cheap scanner can see).

 

Thanks!

Link to comment
Share on other sites

1 answer to this question

Recommended Posts

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    246.8k
    Total Topics
    2.6m
    Total Posts
  • Member Statistics

    334,760
    Total Members
    8,960
    Most Online
    CurtlMarvin
    Newest Member
    CurtlMarvin
    Joined
  • Who's Online   2 Members, 0 Anonymous, 519 Guests (See full list)



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.